I need help to get viber on my passport

Hi
I Need help to get viber 10 on my passport
and i wan't to use apk because It contains many problems so
I have read many post and show me you can install viber 10 only by two ways :
1. using viber 10 bar file , i tried to get it but failed
2 . or using backup for old blackberry 10 phone like z10 or z30
so i need any backup include viber app from any z10 or z30 phone
thanks

I use viber from Snap but it has bugs. The worst one is that I would receive calls on my phone but somehow viber intervenes and it's showing that someone is calling from viber and I can't answer the phone call.
Other problem is that my phone calls tend to be cut off mid call when signal is fine. Once I unistall it the phone works fine without any of the issues I mentioned.
It's a shame we can't have an app like what's app which works very good and it's integrated with the hub.